111031012 has 12 divisors (see below), whose sum is σ = 205734060. Its totient is φ = 52249856.

The previous prime is 111030989. The next prime is 111031021. The reversal of 111031012 is 210130111.

It can be written as a sum of positive squares in 2 ways, for example, as 85082176 + 25948836 = 9224^2 + 5094^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111031012.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816337 + ... + 816472.

It is an arithmetic number, because the mean of its divisors is an integer number (17144505).

Almost surely, 2^111031012 is an apocalyptic number.

It is an amenable number.

111031012 is a deficient number, since it is larger than the sum of its proper divisors (94703048).

111031012 is a wasteful number, since it uses less digits than its factorization.

111031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632830 (or 1632828 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 111031012 is about 10537.1254144572. The cubic root of 111031012 is about 480.6343060896.

Adding to 111031012 its reverse (210130111), we get a palindrome (321161123).

Subtracting 111031012 from its reverse (210130111), we obtain a palindrome (99099099).

The spelling of 111031012 in words is "one hundred eleven million, thirty-one thousand, twelve".